Dspark,
I'm just pointing out Ufer's superior ohmic value vs. G-rods. the entire history of GEC's is somewhat checkered, even the UG water pipe has been opposed since day one by water workers orginizations.

the problem is in the lack of 250 to allow the field sparky to quantify GEC values.

what say we use 250-52(b) for an underground fuel tank?? [Linked Image]